Table 2 Ethylene glycol loads on the LOS using different methods of estimation.

From: Detection and quantification of water-based aerosols using active open-path FTIR

 

Measured/predicted concentration/load

Event 1

Event 2

Event 3

Event 4

Event 5

Sprayed solution

0.47%wt

0.57%wt

0.95%wt

1.58%wt

2.38%wt

Collected droplets

0.48%wt

0.60%wt

1.00%wt

1.65%wt

2.58%wt

Direct estimation- gaseous ethylene glycol

0.097 mg/m

0.142 mg/m

0.158 mg/m

0.307 mg/m

0.404 mg/m

Offline estimation- condense ethylene glycol (app.#1)

0.051 mg/m

0.063 mg/m

0.106 mg/m

0.174 mg/m

0.271 mg/m

Direct estimation- condense ethylene glycol (app.#2)

0.029 mg/m

0.043 mg/m

0.068 mg/m

0.072 mg/m

0.142 mg/m

Indirect estimation- condense ethylene glycol (app.#3)

0.050 mg/m

0.060 mg/m

0.100 mg/m

0.166 mg/m

0.250 mg/m

  1. The ethylene glycol load is given in mg of ethylene glycol per meters of LOS.